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This article mainly introduces how to make commands run in the background and switch in the foreground and background under CentOS, which has a certain reference value. Interested friends can refer to it. I hope you can learn a lot after reading this article.

Adding a "&" symbol to the end of the command allows the command to run in the background

At this point, you can see a command number and a command, followed by Running, indicating that it is running

Enter fg to call the background command back to the foreground.

But if there are multiple commands running in the background, you need the jobs command

The jobs command lists all commands running in the background and their running status

Then use the fg space followed by the command number to call the corresponding command back to the foreground.

If a command is already running at the front desk and you don't want to end it

Press Ctrl+Z to move the command to the background

But you can see that the status of the command is Stopped

You can use the bg space followed by the command number to place the command in the Runing state.

Although the above method allows the command to run in the background

But if you log out or close the terminal, the command in the background will end.

If you don't want the command to end, you need nohup.

Add a nohop space to the command that you want to continue to run after exiting.

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